CVE-2023-53514

Service interruption via unreleased host1x device names

Published Oct 1, 2025 · Updated Oct 1, 2025

Memory leak in the Linux kernel host1x driver in version 6.0 allows local users to consume unreleased kernel memory during module unloading. In drivers/gpu/host1x/context.c, device names allocated by dev_set_name() retain a kobject reference because teardown does not unregister added devices or drop failed-add references. Reachability requires local low-privileged access and an NVIDIA Tegra host1x configuration; accumulated leakage can exhaust memory and interrupt service.

CVSS severity5.5
Medium
EPSS probability0.14%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Memory leak in the Linux kernel host1x driver in version 6.0 allows local users to consume unreleased kernel memory during module unloading. In drivers/gpu/host1x/context.c, device names allocated by dev_set_name() retain a kobject reference because teardown does not unregister added devices or drop failed-add references. Reachability requires local low-privileged access and an NVIDIA Tegra host1x configuration; accumulated leakage can exhaust memory and interrupt service.

The record

CVE
CVE-2023-53514
Published
Oct 1, 2025
Updated
Oct 1, 2025
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-401, T1499
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Oct 1, 2025CVE publishedPublication date reported by the CVE source.
  2. Oct 1, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=6.0
  2. Affected versionversion=8aa5bcb61612060429223d1fbb7a1c30a579fc1f <3ab0f5ddb761270b11d8c90b8550a59666cfc9bb
  3. Affected versionversion=8aa5bcb61612060429223d1fbb7a1c30a579fc1f <55879dad0f3ae8468444b42f785ad79eac05fe5b
  4. Affected versionversion=8aa5bcb61612060429223d1fbb7a1c30a579fc1f <958c6cbc32996c375af42db96ceba021a1959899
  5. Affected versionversion=8aa5bcb61612060429223d1fbb7a1c30a579fc1f <dba1aeaaf3d0e2f996cb0a5609e5e85ecf405a5c

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=6.0; version=8aa5bcb61612060429223d1fbb7a1c30a579fc1f <3ab0f5ddb761270b11d8c90b8550a59666cfc9bb; version=8aa5bcb61612060429223d1fbb7a1c30a579fc1f <55879dad0f3ae8468444b42f785ad79eac05fe5b; version=8aa5bcb61612060429223d1fbb7a1c30a579fc1f <958c6cbc32996c375af42db96ceba021a1959899; version=8aa5bcb61612060429223d1fbb7a1c30a579fc1f <dba1aeaaf3d0e2f996cb0a5609e5e85ecf405a5c

Published CVSS scores

5.5NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-401Missing Release of Memory after Effective Lifetime
T1499Endpoint Denial of Service

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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